test_dynamicclassattribute.py 文件源码

def test_property_setter_copies_getter_docstring(self):
        class Foo(object):
            def __init__(self): self._spam = 1
            @PropertySub
            def spam(self):
                """spam wrapped in DynamicClassAttribute subclass"""
                return self._spam
            @spam.setter
            def spam(self, value):
                """this docstring is ignored"""
                self._spam = value
        foo = Foo()
        self.assertEqual(foo.spam, 1)
        foo.spam = 2
        self.assertEqual(foo.spam, 2)
        self.assertEqual(
            Foo.__dict__['spam'].__doc__,
            "spam wrapped in DynamicClassAttribute subclass")
        class FooSub(Foo):
            spam = Foo.__dict__['spam']
            @spam.setter
            def spam(self, value):
                """another ignored docstring"""
                self._spam = 'eggs'
        foosub = FooSub()
        self.assertEqual(foosub.spam, 1)
        foosub.spam = 7
        self.assertEqual(foosub.spam, 'eggs')
        self.assertEqual(
            FooSub.__dict__['spam'].__doc__,
            "spam wrapped in DynamicClassAttribute subclass")